{"id":17771313,"url":"https://github.com/lue-bird/type-checker-language-experiment","last_synced_at":"2025-04-01T15:18:51.253Z","repository":{"id":190596171,"uuid":"682288545","full_name":"lue-bird/type-checker-language-experiment","owner":"lue-bird","description":"An attempt at a language for the logic of a possible type checker for 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attempt at creating a language to handle the logic of a possible future type checker for [the programming language lau](https://github.com/lue-bird/lau).\n\nCurrently includes\n- an elm representation of that language's AST\n- a text parser and printer as one [morph](https://dark.elm.dmy.fr/packages/lue-bird/elm-morph/latest/)\n\nAn example of what it roughly looks like\n```lausdiemaus\nc : choice possibilities\n    possibilities : {}\n        ⨯ \"none of the possibilities matched\"\n    possibilities : {a ..x}\n        c : a\n            c : a\n            c : except a\n                a : choice x\n\nc : set element\n    c : {}\n    c : setFilled {a ..b}\n\nc : setFilled {a ..b}\n    c : {a ..b}\n        a : {value count 1 ..{key aElement ..{}}}\n            aElement : element\n                b : set element\n        a : {value count 1Plus countFrom1 ..{key aElement ..{}}}\n            ⨯ aElement \"is present multiple times\"\n\nc : character\n    c : naturalInRange {start 0 ..{end 1114112 ..{}}}\n\nc : naturalInRange {start minimum ..{end maximum..{}}}\n    c : 0\n        minimum : 0\n        minimum : 1Plus minimumFrom1\n            ⨯ \"lower than start\"\n    c : 1Plus cFrom1\n        maximum : 0\n            ⨯ \"greater than end\"\n        maximum : 1Plus maximumFrom1\n            minimum : 0\n                c : naturalInRange {start 0 ..{end 1Plus maximumFrom1 ..{}}}\n            minimum : 1Plus minimumFrom1\n                cFrom1 : naturalInRange {start minimumFrom1 ..{end 1Plus maximumFrom1 ..{}}}\n```\n\n### what's next?\nImplementing exhaustiveness checking.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flue-bird%2Ftype-checker-language-experiment","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flue-bird%2Ftype-checker-language-experiment","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flue-bird%2Ftype-checker-language-experiment/lists"}